Year	% (cumulative)
1991	56.8672294616699
2001	85.7053680419922
2006	91.0261764526367
2007	93.2160720825195
2008	93.4504699707031
2009	93.484016418457
2010	94.3388137817383
2011	93.7715835571289
2012	94.4625778198242
2013	95.0737380981445
2014	96.5648803710938
2015	96.743782043457
2016	96.3611526489258
2017	96.1560897827148
2018	96.1224365234375
2019	96.3604888916016
2020	96.9263916015625
2021	97.1693420410156
2022	97.4888687133789